Java Search String using indexOf Example
- /*
- Java Search String using indexOf Example
- This example shows how we can search a word within a String object using
- indexOf method.
- */
- public class SearchStringExample {
- public static void main(String[] args) {
- //declare a String object
- String strOrig = "Hello world Hello World";
- /*
- To search a particular word in a given string use indexOf method.
- indexOf method. It returns a position index of a word within the string
- if found. Otherwise it returns -1.
- */
- int intIndex = strOrig.indexOf("Hello");
- if(intIndex == - 1){
- System.out.println("Hello not found");
- }else{
- System.out.println("Found Hello at index " + intIndex);
- }
- /*
- we can also search a word after particular position using
- indexOf(String word, int position) method.
- */
- int positionIndex = strOrig.indexOf("Hello",11);
- System.out.println("Index of Hello after 11 is " + positionIndex);
- /*
- Use lastIndexOf method to search a last occurrence of a word within string.
- */
- int lastIndex = strOrig.lastIndexOf("Hello");
- System.out.println("Last occurrence of Hello is at index " + lastIndex);
- }
- }
- /*
- Output of the program would be :
- Found Hello at index 0
- Index of Hello after 11 is 12
- Last occurrence of Hello is at index 12
- */
